William b



(No Model.)

W. B. ELLI'0TT AGTUATING PAWL POR'LAWN MoWERs.

Patented Deci 5, 1882.

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N. Firms, Mmmm. waning. n. c.

UNITED STATES PATENT ,.EEIcE..`

WILLIAM B. ELLIOTT, OF OORNING, NVEVV YORK.

' `ACTUATlNGi-PAWL FOR LAWN-IVIOWERS.

SPECIFICATION forming part of Letters Patent No. 268,471, dated December 5, 1882.

` Application tiled February 7, 1882. (No model.)

To all 'tv/tom it may concern:

Beit known that I, WILLIAM B. ELLIOTT, a citizen ot the United States, residing at Coriling, in the county of Steuben and State of New York, have invented certain new and useful Improvements in Lawn-Mowers, of which the.

` which projectontwardly theaxles c a, as shown.

Projecting from these disks are braces a c', across the forward ends of whichis securedl the sickle-plate a2. The ends ot' this plate are bent and slotted, and have journaled to them the supporting-wheels a3.

Bis the actuating-shaft. It isplaced betweenthe forward portions of the disks A A, and projects a short distanceV through them. Secured around it centrally, between the disks,

l is apulley, b, which has formed in it a diagonal groove, which engages with the inner end ofthe lever b', `which is pivoted to the brace a4, and by its forward end to the sickle-bar b2, as shown. The ends of theshaft which project through the disks have horizontal slots cut in them, as shown. Within these slots are arranged T-shaped pawls b3. These pawls are pivoted in the outer portion of the slot, as shown, and are adapted to vibrate upon their axes or pivot-pins in the operation of the device.

C is a pinion, which revolves on the projecting ends of the shaftB. Aroundthe bore of the pinion are formed ratchet-teeth c, which engage with the pawls b3 in the operation of the machine. Y

D are the actuatingwheels, revolving on the axles a c, as shown. The faces of their peripheries are corrugated,and around the inner sides of them are formed cogs d, which mesh -with the teeth of the pinions O, as shown.

In the operation of the machine it will be seen that the pawls b3 act by reason of their gravity. In the forward movement of the machine, when the shaft B has assumed a position which will bring the slot vertical, the pawls b3 will drop by their own gravity and enga-ge with the square shoulders ofthe ratchets c, which will cause the shaft to revolve and thence transmit its motion to the lever and sickle-bar. In the backward movement of the machine the pawlswill slide up the beveled portionof the ratchets, and no motion will be.

As the slot runs enimparted to the-shaft. tirely through the shaft, and as the pawl isV provided with engaging ends upon both its sides, as shown, it will be seen that the shaft will engage with as small an amount of lost motion as iftwo pawls upon each shaft were used.

The advantages secured by pivoting the pawls b3 instead of arranging them to act by springs or automatically,as shown in the patents to Passmore, October 2o, 1880, and January 28,1879, are that a steadier and more certain action is secured, and that the construction o' the device is more economical.

Ina lawn-mower, the actuating device consisting of the shaft B, having its ends slotted parallel with itsaXis, and having pivoted in the outer ends of said slots the T-shaped pa wls b3, the free ends of which project out of theslot and are adapted to engage with the ratchets c ofthe pinions O, substantially as shown and described.

In testimony whereof I hereby affix my signature inpresence of two witnesses.

A WILLIAM B. ELLIOTT.' 

